/*
*
* * Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
* *
* * Licensed under the Apache License, Version 2.0 (the "License");
* * you may not use this file except in compliance with the License.
* * You may obtain a copy of the License at
* *
* * http://www.apache.org/licenses/LICENSE-2.0
* *
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS,
* * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* * See the License for the specific language governing permissions and
* * limitations under the License.
* *
* * For more information: http://www.orientechnologies.com
*
*/
package com.orientechnologies.orient.core.sql;
import java.util.Map;
import com.orientechnologies.orient.core.command.OCommandDistributedReplicateRequest;
import com.orientechnologies.orient.core.command.OCommandRequest;
import com.orientechnologies.orient.core.command.OCommandRequestText;
import com.orientechnologies.orient.core.db.record.ODatabaseRecord;
import com.orientechnologies.orient.core.exception.OCommandExecutionException;
import com.orientechnologies.orient.core.index.OIndex;
/**
* SQL REMOVE INDEX command: Remove an index
*
* @author Luca Garulli (l.garulli--at--orientechnologies.com)
*
*/
@SuppressWarnings("unchecked")
public class OCommandExecutorSQLRebuildIndex extends OCommandExecutorSQLAbstract implements OCommandDistributedReplicateRequest {
public static final String KEYWORD_REBUILD = "REBUILD";
public static final String KEYWORD_INDEX = "INDEX";
private String name;
public OCommandExecutorSQLRebuildIndex parse(final OCommandRequest iRequest) {
init((OCommandRequestText) iRequest);
final StringBuilder word = new StringBuilder();
int oldPos = 0;
int pos = nextWord(parserText, parserTextUpperCase, oldPos, word, true);
if (pos == -1 || !word.toString().equals(KEYWORD_REBUILD))
throw new OCommandSQLParsingException("Keyword " + KEYWORD_REBUILD + " not found. Use " + getSyntax(), parserText, oldPos);
oldPos = pos;
pos = nextWord(parserText, parserTextUpperCase, pos, word, true);
if (pos == -1 || !word.toString().equals(KEYWORD_INDEX))
throw new OCommandSQLParsingException("Keyword " + KEYWORD_INDEX + " not found. Use " + getSyntax(), parserText, oldPos);
oldPos = pos;
pos = nextWord(parserText, parserTextUpperCase, oldPos, word, false);
if (pos == -1)
throw new OCommandSQLParsingException("Expected index name", parserText, oldPos);
name = word.toString();
return this;
}
/**
* Execute the REMOVE INDEX.
*/
public Object execute(final Map<Object, Object> iArgs) {
if (name == null)
throw new OCommandExecutionException("Cannot execute the command because it has not been parsed yet");
final ODatabaseRecord database = getDatabase();
if (name.equals("*")) {
long totalIndexed = 0;
for (OIndex<?> idx : database.getMetadata().getIndexManager().getIndexes()) {
if (idx.isAutomatic())
totalIndexed += idx.rebuild();
}
return totalIndexed;
} else {
final OIndex<?> idx = database.getMetadata().getIndexManager().getIndex(name);
if (idx == null)
throw new OCommandExecutionException("Index '" + name + "' not found");
if (!idx.isAutomatic())
throw new OCommandExecutionException("Cannot rebuild index '" + name
+ "' because it's manual and there aren't indications of what to index");
return idx.rebuild();
}
}
@Override
public String getSyntax() {
return "REBUILD INDEX <index-name>";
}
}